This of course is easier in movies than real life, and chances are your ex is that for a good reason and whatever drove you apart the first time is likely to do so again. The best solution would be a combination of the last two. Play the field, try to find someone who you can move on with. In time this ex will come back into your life and you will truly be able to evaluate how much they meant to you when you have someone else of value that you may lose by following your original feelings. A girl likes me, but she doesn’t love me. She can’t live without me even a minute, but she doesn’t want to marry me.